Home / 134,933.04-186,186.60-78,334.56

Finding the Fourth Proportional to 134,933.04, 186,186.60 and 78,334.56

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Solution

The fourth proportional to 134,933.04, 186,186.60 and 78,334.56 is: 108,089.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,933.04 : 186,186.60 = 78,334.56 : x
  2. Step 2: Convert to fraction form
    134,933.04/186,186.60 = 78,334.56/x
  3. Step 3: Cross multiply
    134,933.04x = 186,186.60 × 78,334.56
  4. Step 4: Simplify right side
    134,933.04x = 14,584,845,388.90
  5. Step 5: Solve for x
    x = 14,584,845,388.90/134,933.04
  6. Step 6: Final answer
    x = 108,089.50

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.